public function testDeleteExpected()
{
$id = intval(getenv('ITEM_ID'));
$item = new Item(getenv('DY_TABLE'));
$item['id'] = $id;
$item['name'] = 'test';
$item['strings'] = array('test1', 'test2');
$item['numbers'] = array(4, 5, 6);
$this->conn->put($item);
$expected = new Expected();
$expected['name'] = new ExpectedAttribute('test');
$expected['non_existent'] = new ExpectedAttribute(false);
$context = new Context\Delete();
$context->setExpected($expected);
$context->setReturnValues(ReturnValue::ALL_OLD);
$attributes = $this->conn->delete(getenv('DY_TABLE'), $id, null, $context);
$this->assertNotNull($attributes);
}
/**
* Delete an item via the delete_item call
* @param string $table The item table
* @param mixed $hash The primary hash key
* @param mixed|null $range The primary range key
* @param Context\Delete|null $context The call context
* @return array|null
*/
public function delete($table, $hash, $range = null, Context\Delete $context = null)
{
if (null !== $this->logger) {
$this->log('Delete on table ' . $table);
}
// Primary key
$hash = new Attribute($hash);
$key = array('HashKeyElement' => $hash->getForDynamoDB());
// Range key
if (null !== $range) {
$range = new Attribute($range);
$key['RangeKeyElement'] = $range->getForDynamoDB();
}
$parameters = array('TableName' => $table, 'Key' => $key);
if (null !== $context) {
$parameters += $context->getForDynamoDB();
}
if (null !== $this->logger) {
$this->log('Delete request paramaters : ' . print_r($parameters, true), Logger::DEBUG);
}
$response = $this->connector->deleteItem($parameters);
if (null !== $this->logger) {
$this->log('Delete request response : ' . print_r($response, true), Logger::DEBUG);
}
// Update write counter
$this->addConsumedWriteUnits($table, floatval($response['ConsumedCapacityUnits']));
return $this->populateAttributes($response);
}
